On Mon, Jun 16, 2025 at 05:24:43PM -0400, Martin K. Petersen wrote: > > For a SCSI disk, this defaults to 2560 KB, which significantly improve > > performance for buffered reads. > > I believe this number came from a common RAID stripe configuration at > the time. However, it's really not a great default and has caused > problems with many devices that expect a power of two. Personally, I'd > like this default to be something like 2MB or 4MB. MD, DM, and most > hardware RAID devices report their stripe width correctly so the > existing "RAID-friendly" default really shouldn't be needed. Yeah, that number always felt weird. I'm all for using a more round value here. But as you said, separate isue.